Plow-point.



J. HARRISON.

PLOW POINT.

APPLICATION FILED NOV.15, 1911.

3. %,62 Patented Dec. 31, 1912.

5mm J, Harr 00 71 JOHN HARRISQN, F CHIRICAHUA, ARIZONA.

PLOW-POINT.

Specification of Letters Patent.

Patented Dec. 31, 1912.

Application filed November 15, 1911. Serial No. 660,507.

To all whom it mayconcern:

Be it known that I, JOHN HARRISON, a citizen of the United States,residing at Chiricahua, in the county of Cochise, State 6 of Arizona,have invented certain new and useful Improvements in Plow-Points; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relatesto plows, and has for itsprincipal object toprovide a detachable plow point for the share.

Another object of the invention is to provide a plow standard with adetachable wear plate, the forward end thereof having interlockingconnection with the detachable plow point whereby when the said pointbecomes worn sufficiently to be rendered useless, the said point and thewear plate may be readily removed and others easily attached to theshare. I

A further object of the invention is to provide a plow of the characterdescribed,

which is composed of a minimum number of parts, is therefore simple inconstruction, and is cheap to manufacture.

With these and other objects in View,

.80 the invention consists in the construction and novel combinationofparts hereinafter fully described, illustrated in the accompanyingdrawings, and pointed out in the claim hereto appended; it beingunderstood 3 that various changes in theform, proportion, size and minordetails of construction within the scope of the claim, may be resortedto without departing from the spirit or sacrificing any of theadvantages of the invention. i y i In the drawings: Figure 1 is a topplan view of the share and point, Fig. 2 is a side elevation thereof,showing the detachable landside plate. Fig. 3 is a bottom plan view,showing the connection between the landside plate and the detachablepoint. Fig. 4 is a perspective view of the plow foot and land-side platewith the share indicated in dotted lines. Fig. 5 is a perspective viewof the detachable plow point.

Like reference numerals designate corresponding parts in all the figuresof the drawings.

Referring to the drawings, the plow coinprises the usual standard 5having a forwardly extending foot 6 and a heel 7. Ex-

tending from the standard 5 and integral therewith is the frog (notshown) to which a plow share 9 and mold board (not shown) are adapted tobe attached. The share includes a landside edge 10 and a front edge 11,the latter being disposed at an obtuse angle to the said edge 10. Thefoot 6 is disposed under the share and in spaced relation to the edge10, and the forward end 6 of said foot terminates in rear ofthe frontedge 11 of said share.

Disposed against the outer face of the foot 6 and below the adjacentedge of the share is a landside plate 12, the lower edge 13 thereofprojecting below the lower edge 6 of the foot. The forward edge 14 ofthe plate is disposed in rear of the front end 6 of the foot and flushwith the front edge 11 of the share. This plate and foot are securedtogether by means of a bolt 15,

or other suitable fastening means. The outer face of the forward end ofthe plate is recessed, as indicated by the reference numeral 16, to forma consequent vertical shoulder 17 My invention further comprises adetachable point for the share, and this point is indicated as a wholeby the reference numeral 18. This point includes a landside edge 19which is adapted to form a continuation of the edge 10 of the share anda cutting edge 20 which is adapted to form a continuation of the cuttingedge of said share. The upper face of the rear portion of the point 18is cut away, as indicated by the reference numeral 21 to receive theforward end of the share 9, said cut away portionforming a consequentangular shoulder 22 forming a stop adapted to abut theforward edge 11 ofsaid share. Depending from the edge 19 of the point is alandside 23,'therear end 24 thereof projecting beyond the shoulder 22 and adapted to beseated within the recess 16 of the detachable wear plate. .The rearportion of the point is formed with a forwardly extending longitudinalslot 25 for receiving the forward end of the landside 'of the share.Also formed in the rear end of the point is a recess 26 for receivingthe forward end of the foot 6, said recess forming a resultant shoulder27 for engagement with the forward end 6 of said foot. The rear end ofthe point is formed with an opening 28 and this opening registers withan opening 29 formed in the forward portion of H share 9. Disposedwithin said registering openings is a bolt 30 of any suitableconstruction which not only holds-the point to the share and preventslongitudinal movement thereof, but permits of the point to be readilyremoved and another one replaced whenever so desired.

In Figs. 4 and 5, I have shown the detachable plow point, and the plowfoot and land-side plate with the plow share illustrated in dottedlines. These two views taken together show the relative positions of theparts which go to make up the interlocking joint when the connection isto be made.

From the foregoing, it will be observed that when either the point orthe wear plate have become sufliciently worn, they may be readilyremoved and others replaced. It will furthermore be observed that thepoint, while being directly secured to the share 9 also has aninterlocking engagement with both the wear plate and the foot of thestandard, so that any tendency of the point to move in any directionwill be avoided.

What is claimed is In combination with a plow standard and its foot, ofa share connected to the standard, a landside plate detachably connectedto the foot, and a plow pointincluding a base flange detachablyconnected to the share and having interlocking engagement with thelandside plate, the forward end of the landside late being recessed onits underface to orm a tongue,

and the rear end of the point being recessed in its upper face to form atongue, the respective tongues fitting within the respective recesses ofthe plate and point.

In testimony whereof, I affix my signa' ture, in presence of twowitnesses.

JOHN J. NEWELL, EMMETT TAPP.

